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All results from a given calculation for CH3OHH2O (methanol water dimer)

using model chemistry: B3LYP_cp_opt/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP_cp_opt/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.245177
Energy at 298.15K-192.250226
Nuclear repulsion energy 
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP_cp_opt/6-311+G(3df,2pd)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3819 3704 10.18      
2 A' 3733 3621 409.20      
3 A' 3094 3001 38.81      
4 A' 2981 2891 75.45      
5 A' 1629 1580 75.90      
6 A' 1512 1467 3.52      
7 A' 1479 1435 3.81      
8 A' 1417 1374 36.14      
9 A' 1113 1079 10.02      
10 A' 1064 1032 103.80      
11 A' 237 230 205.06      
12 A' 153 148 11.71      
13 A' 73 71 39.72      
14 A" 3916 3798 83.78      
15 A" 3022 2931 65.09      
16 A" 1498 1454 2.45      
17 A" 1174 1139 0.56      
18 A" 657 637 112.14      
19 A" 181 176 0.86      
20 A" 83 81 9.44      
21 A" 54 52 49.52      

Unscaled Zero Point Vibrational Energy (zpe) 16443.1 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 15949.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP_cp_opt/6-311+G(3df,2pd)
ABC
1.13385 0.12243 0.11467

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-311+G(3df,2pd)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.362 0.000
O2 -0.964 0.286 0.000
O3 1.944 0.716 0.000
C4 -1.322 -1.083 0.000
H5 2.204 1.237 0.765
H6 2.204 1.237 -0.765
H7 -2.410 -1.135 0.000
H8 -0.955 -1.607 -0.889
H9 -0.955 -1.607 0.889

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96651.97591.95852.49222.49222.83652.36172.3617
O20.96652.93901.41553.39493.39492.02722.09152.0915
O31.97592.93903.72890.96150.96154.73073.81963.8196
C41.95851.41553.72894.29014.29011.08891.09521.0952
H52.49223.39490.96154.29011.53055.24414.56114.2525
H62.49223.39490.96154.29011.53055.24414.25254.5611
H72.83652.02724.73071.08895.24415.24411.76941.7694
H82.36172.09153.81961.09524.56114.25251.76941.7774
H92.36172.09153.81961.09524.25254.56111.76941.7774

picture of methanol water dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 C4 109.164 H1 O3 H5 111.336
H1 O3 H6 111.336 O2 H1 O3 174.152
O2 C4 H7 107.370 O2 C4 H8 112.200
O2 C4 H9 112.200 H5 O3 H6 105.471
H7 C4 H8 108.221 H7 C4 H9 108.221
H8 C4 H9 108.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.362      
4 C 0.000      
5 H 0.181      
6 H 0.181      
7 H 0.000      
8 H 0.000      
9 H 0.000      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.595 0.676 0.000 2.682
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.250 7.234 0.000
y 7.234 -17.377 0.000
z 0.000 0.000 -18.418
Traceless
 xyz
x 0.647 7.234 0.000
y 7.234 0.458 0.000
z 0.000 0.000 -1.105
Polar
3z2-r2-2.209
x2-y20.126
xy7.234
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.230 -0.007 0.000
y -0.007 1.245 0.000
z 0.000 0.000 1.386


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000